BU9795AKS2

○

Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.

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TSZ02201-0A0A2D300020-1-2

12.July.2012 Rev.002

www.rohm.com

© 2012 ROHM Co., Ltd. All rights reserved.

TSZ22111･14･001

Datasheet

Standard LCD Segment Drivers

BU9795Axxx Series

MAX 140 segments (SEG35×COM4)

●Features

Integrated RAM for display data (DDRAM) :

35 × 4bit (Max 140 Segment)

LCD drive output :

4 Common output, Max 35Segment output

Integrated Buffer AMP for LCD driving

Integrated Oscillator circuit

No external components

Low power consumption design

●Applications

Telephone

FAX

Portable equipment (POS, ECR, PDA etc.)

DSC

DVC

Car audio

Home electrical appliance

Meter equipment

etc.

●Key Specifications

■

Supply Voltage Range:

+2.5V to +5.5V

■

Operating Temperature Range:

-40°C to +85°C

■

Max Segments:

BU9795AKV

140 Segments

BU9795AFV

108 Segments

BU9795AGUW

124 Segments

BU9795AKS2

140 Segments

■

Display Duty:

1/4

■

Bias:

1/2, 1/3 selectable

■

Interface:

3wire serial interface

●Packages

W (Typ.) x D (Typ.) x H (Max.)

●Typical Application Circuit

Figure 1.

Typical application circuit

Controller

VDD

VLCD

INHb

CSB

SD

SCL

OSCIN

TEST

VSS

COM0

COM1

COM2

COM3

SEG0

SEG1

Segment

LCD

VDD

SEG34

・・・・

・・・

Using Internal oscillator

SSOP-B40

13.60mm x 7.80mm x 2.00mm

VQFP48C

9.00mm x 9.00mm x 1.60mm

VBGA048W040

4.00mm x 4.00mm x 0.90mm

SQFP-T52M

12.00mm x 12.00mm x 1.40mm